<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>上传文件和隐藏字段</title>
</head>
<body>
    <div>
        <div>请截图说明</div>
        <div>
            <input type="file" name="file" placeholder="请选择">
        </div>
    </div>

    <div>
        <div>上传图片按钮-替换提交按钮</div>
        <div>
            <form action="#">
                <input type="image" src="img/submit.png" name="file" title="请选择">
            </form>
        </div>
    </div>

    <div>
        <div>隐藏按钮</div>
        <div>
            <input type="hidden" name="id" value="123">
        </div>
    </div>

    <div>
        <div>禁用-只读</div>
        <div>
            <button disabled>注册</button>
            <input type="text" value="不满意" readonly>
        </div>
    </div>
</body>
</html>